CC0 · no rights reserved
Warren Spring Motor, Patent Model
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
This model was submitted to the U.S. Patent Office with the application for the patent issued to John Warren, of Detroit, Michigan, April 20, 1880, no. 226813.
National Museum of American History’s own descriptionCredit lineWarren Spring Motor, Patent Model. 1880. Warren, John. National Museum of American History. CC0.
